Peter Skipworth wrote:
> Does anyone have any experience in using IPC shared memory or similar in
> caching data amongst multiple httpd daemons ? We run a large-ish database
> dependent site, with a mysql daemon serving many hundreds of requests a
> minute. While we are currently caching SQL query results on a per-process
> basis, it would be nice to share this ability across the server as a
> whole.
>
> I've played with IPC::Shareable and IPC::ShareLite, but both seem to be a
> little unreliable - unsurprising as both modules are currently still under
> development. Our platform is a combination of FreeBSD and Solaris servers
> - speaking of which, has anyone taken this one step further again and
> cached SQL results amongst multiple web servers ?
I've written my own solution to this, called Tie::MmapCache, which implements
an LRU cache of data in a memory mapped file, which can be shared by an
arbitrary number of processes. Unfortunately, it's not publically available
yet, but I hope to get it released soon.
--
Peter Haworth [EMAIL PROTECTED]
"The warts in a language tend to be more orthogonal than the features"
-- Larry Wall, at the Perl Conference 2.0
